High Grade Serous Ovarian Carcinomas Originate in the Fallopian Tube

Study ID Alternative Stable ID Type
EGAS00001002589 Other

Study Description

High-grade serous ovarian carcinoma (HGSOC) is the most frequent type of ovarian cancer and has a poor outcome. It has been proposed that fallopian tube cancers may be precursors of HGSOC but evolutionary evidence for this hypothesis has been limited. To provide insights into the origins of HGSOC, we We performed whole-exome sequence and copy number analyses of laser-capture microdissected fallopian tube lesions (p53 signatures, serous tubal intraepithelial carcinomas (STICs), and fallopian tube carcinomas), ovarian cancers, and metastases from nine patients with HGSOC. The majority of tumor-specific sequence and structural alterations in ovarian cancers were present in STICs, including those affecting TP53, BRCA1, BRCA2 or PTEN genes. An eEvolutionary analyseis revealed that p53 signatures and STICs were are the precursors of ovarian carcinoma which in turn gave rise to metastatic lesionsand identify a. In one patient we identified a second STIC as a metastasis in the fallopian tube opposite from the affected ovary. These analyses revealed a window of seven years between the ... (Show More)

Study Datasets 1 dataset.

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Dataset ID Description Technology Samples
The dataset for High Grade Serous Ovarian Carcinomas Originate in the Fallopian Tube includes 46 bam files from next-generation sequencing on the Illumina HiSeq2500. The samples analyzed include multiple lesions from nine patients, five with high grade serous ovarian carcinoma and four who are BRCA-carriers.
Illumina HiSeq 2500 46

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